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283 problems

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Array2,209 String870 Hash Table786 Math682 Dynamic Programming666 Sorting504 Greedy480 Binary Search352 Depth-First Search335 Database303 Bit Manipulation283 Matrix278 Tree261 Breadth-First Search255 Two Pointers249 All topics

With video · 283 results

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TitleSolutionAcceptDifficultyTopics

805. Split Array With Same AverageVideo

Solution27.5%Hard

Array, Bit Manipulation +3· 6 companies

810. Chalkboard XOR GameVideo

Solution67.3%Hard

Array, Bit Manipulation +3· 3 companies

832. Flipping an ImageVideo

Solution83.6%Easy

Array, Bit Manipulation +3· 6 companies

847. Shortest Path Visiting All NodesVideo

Solution66.5%Hard

Bit Manipulation, Bitmask +3· 4 companies

861. Score After Flipping MatrixVideo

Solution80.3%Medium

Array, Bit Manipulation +2· 3 companies

864. Shortest Path to Get All KeysVideo

Solution55.0%Hard

Array, Bit Manipulation +2· 7 companies

868. Binary GapVideo

Solution74.2%Easy

Bit Manipulation· 6 companies

898. Bitwise ORs of SubarraysVideo

Solution56.8%Medium

Array, Bit Manipulation +1· 7 companies

943. Find the Shortest SuperstringVideo

Solution45.8%Hard

Array, Bit Manipulation +3· 2 companies

957. Prison Cells After N DaysVideo

Solution39.0%Medium

Array, Bit Manipulation +2· 1 company

980. Unique Paths IIIVideo

Solution82.8%Hard

Array, Backtracking +2· 7 companies

982. Triples with Bitwise AND Equal To ZeroVideo

Solution60.7%Hard

Array, Bit Manipulation +1· 2 companies

995. Minimum Number of K Consecutive Bit FlipsVideo

Solution62.7%Hard

Array, Bit Manipulation +3· 2 companies

996. Number of Squareful ArraysVideo

Solution51.9%Hard

Array, Backtracking +5· 2 companies

1009. Complement of Base 10 IntegerVideo

Solution63.3%Easy

Bit Manipulation· 5 companies

1018. Binary Prefix Divisible By 5Video

Solution53.5%Easy

Array, Bit Manipulation· 3 companies

1066. Campus Bikes IIVideoPremium

Solution55.9%Medium

Array, Backtracking +3· 1 company

1125. Smallest Sufficient TeamVideo

Solution55.5%Hard

Array, Bit Manipulation +2· 1 company

1177. Can Make Palindrome from SubstringVideo

Solution42.0%Medium

Array, Bit Manipulation +3· 1 company

1178. Number of Valid Words for Each PuzzleVideo

Solution47.8%Hard

Array, Bit Manipulation +3· 1 company

1238. Circular Permutation in Binary RepresentationVideo

Solution73.2%Medium

Backtracking, Bit Manipulation +1· 1 company

1239. Maximum Length of a Concatenated String with Unique CharactersVideo

Solution54.7%Medium

Array, Backtracking +2· 6 companies

1255. Maximum Score Words Formed by LettersVideo

Solution81.9%Hard

Array, Backtracking +4· 3 companies

1256. Encode NumberVideoPremium

Solution70.0%Medium

Bit Manipulation, Math +1· 1 company

1284. Minimum Number of Flips to Convert Binary Matrix to Zero MatrixVideo

Solution72.9%Hard

Array, Bit Manipulation +3· 1 company

1310. XOR Queries of a SubarrayVideo

Solution78.1%Medium

Array, Bit Manipulation +1· 3 companies

1318. Minimum Flips to Make a OR b Equal to cVideo

Solution71.9%Medium

Bit Manipulation· 2 companies

1342. Number of Steps to Reduce a Number to ZeroVideo

Solution86.0%Easy

Bit Manipulation, Math· 6 companies

1349. Maximum Students Taking ExamVideo

Solution54.8%Hard

Array, Bit Manipulation +3· 3 companies

1356. Sort Integers by The Number of 1 BitsVideo

Solution82.3%Easy

Array, Bit Manipulation +2· 4 companies

1371. Find the Longest Substring Containing Vowels in Even CountsVideo

Solution75.7%Medium

Bit Manipulation, Hash Table +2· 6 companies

1386. Cinema Seat AllocationVideo

Solution56.8%Medium

Array, Bit Manipulation +2· 5 companies

1404. Number of Steps to Reduce a Number in Binary Representation to OneVideo

Solution63.8%Medium

Bit Manipulation, String· 7 companies

1434. Number of Ways to Wear Different Hats to Each OtherVideo

Solution47.0%Hard

Array, Bit Manipulation +2· 3 companies

1442. Count Triplets That Can Form Two Arrays of Equal XORVideo

Solution84.9%Medium

Array, Bit Manipulation +3· 2 companies

1457. Pseudo-Palindromic Paths in a Binary TreeVideo

Solution68.3%Medium

Binary Tree, Bit Manipulation +3· 2 companies

1461. Check If a String Contains All Binary Codes of Size KVideo

Solution61.5%Medium

Bit Manipulation, Hash Function +3· 5 companies

1486. XOR Operation in an ArrayVideo

Solution87.5%Easy

Bit Manipulation, Math· 2 companies

1494. Parallel Courses IIVideo

Solution31.3%Hard

Bit Manipulation, Bitmask +2· 3 companies

1506. Find Root of N-Ary TreeVideoPremium

Solution78.4%Medium

Bit Manipulation, Depth-First Search +2· 3 companies

1521. Find a Value of a Mysterious Function Closest to TargetVideo

Solution48.3%Hard

Array, Binary Search +2· 1 company

1525. Number of Good Ways to Split a StringVideo

Solution68.2%Medium

Bit Manipulation, Dynamic Programming +2· 2 companies

1542. Find Longest Awesome SubstringVideo

Solution47.4%Hard

Bit Manipulation, Hash Table +1· 1 company

1558. Minimum Numbers of Function Calls to Make Target ArrayVideo

Solution62.9%Medium

Array, Bit Manipulation +1· 1 company

1595. Minimum Cost to Connect Two Groups of PointsVideo

Solution50.9%Hard

Array, Bit Manipulation +3· 1 company

1601. Maximum Number of Achievable Transfer RequestsVideo

Solution64.5%Hard

Array, Backtracking +2· 1 company

1611. Minimum One Bit Operations to Make Integers ZeroVideo

Solution78.5%Hard

Bit Manipulation, Dynamic Programming +1· 5 companies

1617. Count Subtrees With Max Distance Between CitiesVideo

Solution67.4%Hard

Bit Manipulation, Bitmask +3

1655. Distribute Repeating IntegersVideo

Solution41.1%Hard

Array, Backtracking +3· 1 company

1659. Maximize Grid HappinessVideo

Solution41.6%Hard

Bit Manipulation, Bitmask +2· 1 company

Showing 51–100 of 283